//
//  XYObject+KVO.h
//  KVO
//
//  Created by yao zhaofeng on 2018/4/4.
//  Copyright © 2018年 YaoZhaofeng. All rights reserved.
//

#import "XYObject.h"

@interface XYObject (KVO)
- (void)XY_addObserver:(NSObject *)observer forKeyPath:(NSString *)keyPath options:(NSKeyValueObservingOptions)options context:(void *)context;
@end
